HomeRoast Digest


Topic: Grill Roasting Drums (56 msgs / 1379 lines)
1) From: R.N.Kyle
Nice buy ED, I'd be interested in one when you get them done.
Ron Kyle
Anderson SC
rnkyle

2) From: Ed Needham
Hey.
I just bought 22  stainless cylinders that I will be making into roasting
drums.  Right now, it looks like I'll be making these ready to mount on your
rotisserie rod.  They'll have a cone opening and stirring vanes, and be ready
to go.  I have no idea about the price yet, but was just too excited to sit
on it.  Here's a pic of the drums.  They are stainless steel, have 1/8" x 1"
slots and should roast one pound or less easily.http://www.homeroaster.com/Roaster%20drums.jpgEd Needham
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3) From:
I'm 3 weeks into tax season, I just finished a 6 hour phone call with a client finishing 2001 so I can start to work on 2002, and soon I'll have a 1 pound roasting drum. Does it get any better than this?!?!
Ed, just let me know when you are finished and I'll buy one.
TIA,
Joe
WBP II, Bodum Antigua, *$ Proteo Barista

4) From: Bamboo Joe
<Snip>
your
<Snip>
ready
<Snip>
sit
<Snip>
1"
<Snip>
Ed:
Count me in!
Joe
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5) From: jim gundlach
On Wednesday, February 19, 2003, at 11:31 PM, Ed Needham wrote:
<Snip>
Ed,
    I'm trying to guess the size.   It looks like they are six inches 
long and five inches in diameter. If so, the have a capacity of just 
under 120 cubic inches so using the rule of thirds they could hold 40 
cubic inches.  Can anyone remind me of how many cubic inches of green 
beans per pound?  If my estimates are right, would you consider making 
a double length unit?  It should be relatively easy to use the vanes as 
the structural connectors.
Jim Gundlach
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6) From: Dan Bollinger
1/2 pounds of beans occupies about 32 cubic inches.  
<Snip>
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7) From: jim gundlach
Dan,
    Thanks,  I know I will remember it now.
        Jim Gundlach
On Thursday, February 20, 2003, at 08:09 AM, Dan Bollinger wrote:
<Snip>
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8) From: floyd burton
DRUM ROLLLL  Can see it now Ed's Drums in bold dayglow letters.  Ed-what is
the dimensions and what size rod are you using.  If it is possible to vary
the diameter, that might help increase the number of compatible grills,
peanut roasters and smokers they might fit into.

9) From: Dan Bollinger
Hee hee: http://www.dayglo.com/!Day-Glo%20Color%20Corp.htm<Snip>
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10) From: Joseph A. Feliciani
I'm 3 weeks into tax season, I just finished a 6 hour phone call with a
client finishing 2001 so I can start to work on 2002, and soon I'll have a 1
pound roasting drum. Does it get any better than this?!?!
Ed, just let me know when you are finished and I'll buy one.
TIA,
Joe
WBP II, Bodum Antigua, *$ Proteo Barista

11) From: Jim Robinson
Ed. your list is expanding......you can include me as well.
Jim

12) From: David Westebbe
<Snip>
 Here's a pic of the drums.  They are stainless steel, 
<Snip>
They look great.  What is the diameter?
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13) From: Oaxaca Charlie
--- jim gundlach  wrote:
<Snip>
 The rule of thirds? I thought I was really pushing the envelope
by filling my drum 1/3 full of green beans. It's almost 2/3 full
when done roasting. Comercial units I've seen in action never 
seemed that full. I wonder how the funnel hole would handle a
drum that full. Wouldn't some spill out?  
 A double length unit does sound like a great option.
Charlie
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14) From: Andrew Thomas
"Ed Needham"  wrote:
Hey. I just bought 22  stainless cylinders that I will be making into roasting drums.  Right now, it looks like I'll be making these ready to mount on your rotisserie rod.  They'll have a cone opening and stirring vanes, and be ready to go.  I have no idea about the price yet, but was just too excited to sit on it.  Here's a pic of the drums.  They are stainless steel, have 1/8" x 1" slots and should roast one pound or less easily.
----------------------------
Ed, you're making it hard for me not to build a roaster. The only thing that saves me from diving in is that I don't already have a gas grill. Whenever I'm in any kind of store, I casually notice whatever might be used in some way to roast coffee. Example: last night in K-Mart I saw a s/s utensil container. Looked about 18 gauge, 10" x 4" (guess), solid (no perfs). The tag said, "Martha Stewart Living (!) Utensil Container-Coffee Roasting Drum". Then I blinked and the "Coffee Roasting" bit disappeared.
Andy
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15) From: floyd burton
Hey ANdy-another drum head here-there are lots of places offering grills at
big discounts just now-don't bother looking for deals on Weber's-they have a
fierce price maintenance program-also check out the FS section in small
papers-lots of people be getting short of cash just now.  Good luck

16) From: David Westebbe
<Snip>
I want one too, if you are keeping track...
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17) From: Ed Needham
Singles?  Doubles?  Ristretto?  I can do them all .  Drum size is 5 1/2"
diameter x 6 1/4" length.  I don't see why I couldn't put two together.  A
double would be 12 1/2" long plus the end cone.  It's about the same size as
the first drum roaster I built and I was roasting a pound in it.
Let me see how it all goes when they come in.
Ed

18) From: Ed Needham
I'm going to make the drum and accessorize it with stirring vanes, axle
connectors, end pieces and the buyer will have to furnish the grill,
rotisserie and anything else.  It will be made to fit on a standard 5/16" to
3/8" grill spit.
Ed Needham
To Absurdity and Beyond!http://www.homeroaster.comed
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19) From: Ed Needham
You've got it bad.  I do exactly the same thing.  Trash can?  Roaster?
Filter tube?  Roasting drum?  Pencil holder?  Sure thing!  heheheh
Heck, I almost bought a natural gas conversion heating unit to retrofit an
oil furnace because it combined great amounts of heat and air.  The idea is
still wafting through my head, but the auction price on that one was run up
by two bidders going at each other to snag it.  Next time.
Ed Needham
To Absurdity and Beyond!http://www.homeroaster.comed
****************************************
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20) From: Ed Needham
It's all just a bit of a guess until the first one is complete.  My first
grill roaster would do a pound and it was pretty much the same size, so I'm
going from that.  The cone will have to be tested to see how that affects the
batch size, but if the hole is 2" and the cone is elongated enough, I don't
think it will make a difference.
Ed Needham
To Absurdity and Beyond!http://www.homeroaster.comed
****************************************
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21) From: John Abbott
Hey guys, I still do counseling :O)

22) From: Mike Gallant
OK, I'm in for a double (if this is how you're taking orders). Can you get
that out today, please? ;)
-mike
--
Mike Gallant
pischke
<Snip>
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23) From: floyd burton
Just fyi-the Diedrich IRC-7 has 1020.5 cu in in their 7# drum so that works
out to be 145 cu in/#.  At that ratio my small drum has a capacity of 12#. I
even dread to think of the smoke produced by 10# of beans-even roasted to
the start of a second crack.  Speaking of cracks-I completely missed the
first crack on some old Sumatran beans I was roasting-do old green beans
have quieter first cracks-stopped the roast when it was apparent it wuz
starting a ripping second-more give away beans but not bad either.
Another point-those drums with the 1/8" x 1" slits will retain very little
chaff IMHO-be very interesting to see how they work.  Again some people tout
their drums with no perfs-others think perfs are necessary and maybe slots
are even better.  Like in real life-ain't no single path to nirvana with the
journey being more fun than the destination IMHO.

24) From: jim gundlach
On Thursday, February 20, 2003, at 06:27 PM, Ed Needham wrote:
<Snip>
Using these numbers, and at 64 cubic inches per pound of green beans 
and sticking with the rule of a third a single unit would roast .77 
pounds so a double would do 1.5 pounds fine.
Jim Gundlach
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25) From: Oaxaca Charlie
--- floyd burton  wrote:
<Snip>
 I went and measured how much I'm filling my drum and it's over
1/3 by a fair margen. And, having practiced a fair bit the
roasts turn out just the way I want them. If I had an open hole
in the middle of an end plate,  a lot of beans would tumble out,
though. 
 > Speaking of cracks-I completely
<Snip>
 Generally they do. Really fresh beans can go off like
firecrackers
 
<Snip>
 The slits look like they should work fine. One thing about the
ss mesh in my drum, it grabs the beans and gives extra agitation
pulling them way up the sides.
Charlie
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26) From: Kenta Kizawa
Way to go Ed. I've been thinking about doing a drum myself but it would
really be nice to have it done right! Put me down for one. Now, must
find a rotisserie for a little Weber Genesis. Probably from, uhm,
lets's see. Weber?
Kenta
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27) From: floyd burton

28) From: Ed Needham
Floyd,
That's an interesting observation about the slots letting more chaff go
through.  I think that might be the case.  Cool!
Ed Needham
To Absurdity and Beyond!http://www.homeroaster.comed
****************************************
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29) From: Ed Needham
I'm going to put two lateral stirring vanes in these drums, but the slits may
keep the beans moving quite a bit by themselves.
Ed Needham
To Absurdity and Beyond!http://www.homeroaster.comed
****************************************
**********************************************

30) From: Ed Needham
A Ferris Wheel roaster might be interesting.  15" diameter and 3 " wide.
Really agitate those beans.
Ed Needham
To Absurdity and Beyond!http://www.homeroaster.comed
****************************************
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31) From: floyd burton
Ed-to keep the beans from coming out the "open" end-suggest u angle the
vanes so they push the beans toward the other end till the drum is picked up
and emptied out-just a suggestion.

32) From: Oaxaca Charlie
--- floyd burton  wrote:
<Snip>
 
OK, I guess, but-
 
  Diedrich's IRC-7 drum is
<Snip>
 I never did memorize the formula for figuring cu", so maybe
that adds up, but I'd swear that the drum on an IR-7 is bigger
than 13" by 10". That's shorter than my drum and only an inch
more in diameter. If I put 7 lbs of beans in mine it would be
stuffed full to bursting by the time they were roasted. 
<Snip>
 Floyd, it's quite ironic that it would me me saying this, but
you need a little work on your postings. Not what you're saying,
but how they're laid out. This one I'm responding to seemed to
be signed by me(see above) and many others have no indents when
you're replying and other people's posts are part of your reply
Just a helpfull hint because no one else has mentioned it.;o)
Charlie
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33) From: Ed Needham
Unless I mount the stirring vanes on raised posts, to angle them involves
curving the angles to conform to the curve of the drum.  Not an easy task at
all.  I'll probably just mount them straight and play with the shape and
opening of the cone to maximize the load.
Ed Needham
To Absurdity and Beyond!http://www.homeroaster.comed
****************************************
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34) From: John Abbott
Ed, Not that the HotTop is a standard for anything, but they have a thick
wire welded into the drum that makes about 300 degrees of rotation.  It is
enough to keep the beans moving.  You might want to consider a couple of
heavy wires.

35) From: Oaxaca Charlie
--- John Abbott  wrote:
<Snip>
 That's exactly what I had in my drum for the first few years
and it did work quite well. Getting vanes curved to fit the drum
was a major pain.
Charlie
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36) From: Rick Farris
Ed wrote:
<Snip>
I beg your pardon?
-- Rick Farris
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37) From: Rick Farris
Charlie wrote:
<Snip>
Who do you think you are?  Rick Farris? :-)
-- Rick
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38) From: Oaxaca Charlie
--- Rick Farris  wrote:
<Snip>
 Hardly ;o) No, I just learned how to post since begining to
write to this list less than a year ago (As you well know, Rick)
 Never used a computer much before that.
Charlie
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39) From: Dan Bollinger
With a pound being 64 cu.in. when green, that means they are loading their
drum 7/16ths (a little more than 2/5ths) full before roasting. That is a lot
fuller than the 1/6th ratio I read about process drums.  Good to know!  Dan
<Snip>
works
<Snip>
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40) From: Dan Bollinger
LOL!
<Snip>
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41) From: Ed Needham
heheheh
See, there's your niche.  Design a narrow, large diameter roasting drum and
call it the Farris Wheel Roaster. 
Ed

42) From: jim gundlach
I have often heard it said that beans double in size or volume during 
roasting.  Has anyone actually measured it?  If not, I'm going to wok 
roast some tonight and I will measure before and after.
Jim Gundlach
On Friday, February 21, 2003, at 07:55 AM, Dan Bollinger wrote:
<Snip>
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43) From: Dave Huddle
Yep,  I measured it.
When I used to measure more, I noticed that most beans just about
doubled in volume and lost about 15% of their weight, give or take a
bit on both paramaters.
Dave	Westerville, OH 
<Snip>
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44) From: Ben Treichel
Thats been my empirical take on it also.
Dave Huddle wrote:
<Snip>
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45) From: Oaxaca Charlie
--- jim gundlach  wrote:
<Snip>
 The amount that they swell depends on the stage of roast.
Rolling second crack gets them closest to doubling their size,
maybe an 80% increase, while a light city roast may only
increase the size by 50%. Seems to depend on the bean to some
extent, too. I stand my drum on end for a moment to open the
hinged end plate for bean removal and see how much more filled
it is than when the beans went in. No time to actually measure
with a tape. I've measured weight loss from 15% (light roast) to
almost 25% (dark french).
Charlie
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46) From: Ken Mary
<Snip>
It depends both on the degree and speed of the roast, maybe cooling speed
also. My fast 3 minute roasts normally expand by 85 to 95 percent, in one
case 100 percent for a true doubling. Slower profiles expand 70 to 85
percent, lighter roasts 50 to 70.
I notice that when cooling in a roaster, the beans appear to shrink, since I
can increase fan speed as cooling progresses while keeping the beans at the
same intensity of mixing.
--
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47) From: John Abbott
Great observations Ken. Not that you need it but ditto!

48) From: jim gundlach
Just as I suspected with this group there has been a lot of measurement 
going on.  Based on this, it is probably better to say that the beans 
expand up to 100% during roasting.  So if your are concerned about 
being able to continue to agitate the beans in a drum, limiting the 
load to 1/3 of capacity is being quite conservative, and 2/5 is safe.  
It also means the new drums will roast a pound without having to double 
up.
Jim Gundlach
On Friday, February 21, 2003, at 11:59 AM, John Abbott wrote:
<Snip>
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49) From: Lowe, David
Ed,
I get behind a few days on reading the postings only to realize that I =
could have missed out. I'm interested, sign me up!
I don't own a gas grill, but am keeping my eye open for a good deal. If =
nothing else garage sale season will be coming up soon and my wife, who =
does her share of "garage sailing" will be keeping her eye out as well.

50) From: David Westebbe
<Snip>
limiting the
<Snip>
I wonder, though, if the beans will not agitate sufficiently if the dram is
almost full.  I'd be afraid that those on the outside would stay on the
outside, while those in the middle would get less heat.
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51) From: Jim Karavias
Hi Ed,
Me too! Me too!
Jim Karavias

52) From: Chris Peters
Ed,
You never did say you were taking orders but as long as everyone else keeps
chiming in I'd like to place my name on the order list too.
Thanks,
Chris Peters

53) From: Ed Needham
What a great R & D department!  ...and they work for beans!
Ed Needham
To Absurdity and Beyond!http://www.homeroaster.com
ed
****************************************
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54) From: Ed Needham
Not really taking orders, but compiling a list of those that might want one
when I get the things built and priced.  I'll probably put pics and a buy
form on my web site when the time comes.  Of course, those that expressed
interest will be first to get them.  Heck, I don't even have the cylinders
yet.  Just bought them a few days ago.  I have the design worked out though,
and I think it'll be a winner for homeroasters.
Ed Needham
To Absurdity and Beyond!http://www.homeroaster.comed
****************************************
**********************************************

55) From: Andrew Thomas
Ed Needham"  wrote:
 
Not really taking orders, but compiling a list of those that might want one ....
------------------------------------
Please put me on the list too, Ed. Meanwhile I'll be looking ot for a suitable grill, motor, spit, larger handbasket,....
Andy
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56) From: Steven Van Dyke
Running behind and not having checked the rest of the thread before I throw
in my 2 cents.
I use a 'Turbo-Crazy' lashup as my big roaster and do 1 cup at a time.  I
store the roasted coffee in pint (2-cup) coffee jars.  Yes indeed, most
coffees about double in volume during roast.  In fact, if I overfill the
measuring cup with greens I can't fit it all in the pint jar.
Enjoy!
Steve :->
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Special Events Photography stuff)


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